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박병수,박상진,소원택 한국목재공학회 1989 목재공학 Vol.17 No.2
To study the structure of opposite wood in the angiosperms, samples were cut from stems and branchs of 10 spcies growing in Korea. The opposite side was defined as being along a line passing from the most wide annual ring of the tension wood on the upper side. to the pith and extrapolated through the opposite side. lateral sides being on the right and left of this line. The stem woods growing almost horizontally were surveyed the structural features of the well-developed opposite wood for the tension wood. In the annual-ring of the well-developed opposite woods, an investigation was made on haw the dimension of elements, microfibril angles, and cell wall layers change from tension side to opposite side. The structural characteristics of opposite wood in hardwoods realized in this study are as follows: 1. The vessel diameters increased continuously to ward the opposite side in which the values were maximum. The vessel length also increased toward opposite side, but the rates of increase were smaller than those in the vessel diameters. 2. The wood fiber length were decreased from tension toward opposite side, but the rates of decrement were flactuated within the sampled species. 3. The microfibril angles had the minimum values on the tension side, then increased steeply toward the opposite side in which the values maximum. 4. In the percentage of elements the vessel elements increased continously at a relative rate from the tension to opposite side, whereas the values of the wood fibers were lower in the opposite than the tension side, but the variation patterns of rays were not seem distinctly. 5. The component layers of the wood fiber in the opposite woods were very similar to the lateral woods.
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朴炳守 韓社大學 1981 대학논문집 Vol.11 No.-
The limestone caverns mainly occupy the natural caverns in Korea. Therefore the variety study of the cause of their formation, formation process, the distribution of pattern, the classification of pattern, and the geographical distribution are very important. The conclusions are as follows. 1. The formation of limestone caverns in Korea originated from the corrosion of limestone group which belonged to the large limestone series in Cambro-Ordovician period. 2. The distinctive pattern of limestone caverns in Korea is largely divided into horizontal caverns and vertical caverns. There are a few network type caverns, and tree type caverns but their utility value is little because of their small scales and less developed cavern landscape. 3. The limestone caverns which occupy 90 percent of natural caverns in Korea is creating beneath the surface of groundwater by the corrosion of ground water. 4. The geographical distribution of limestone caverns in Korea appears to be concentrately in the limestone region, such as the eastern part of South Pyungan province, the southern part of South Hamgyung, Hwanghae, the southern part of Kwangwon, the eastern part of North Chung Cheong, and the northern part of North Kyungpook. 5. Since the limestone caverns are much more beautiful compared to other natural caverns, they have the great value as tourist attractive places as well as fields of each discipline.
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住宅地域 常設市場圈 競合에 관한 經濟地理學的 硏究 : 大邱市 西區地域을 中心으로 A Case in the Western Part of Taegu City
朴炳守 건국대학교 1979 論文集 Vol.9 No.1
The purpose of this study is to clarify the spacial model in the competition between the sphere of standing market in the residential district in big city. The eight markets in the western part of Taegu city were taken for the study and analysis of the competiton between the market sphere of influence and the following conclusions were drawn. ① The distribution of these markets in this study area were located on the main street for the convenience of traffic, and these markets made an arch form at almost equal distance each other toward the north west of the main market Seomun (the biggest market). ② The diffusion of standing markets since the opening of market Seomun in 1922 was keeping pace with the expanding of residential district toward the outer side. ③ The characteristics of standing markets in outer side was not found any specialty in type but is mainly to supply of commodities to the people in their area. ④ The utilization frequency of market by nearly people, the nearer the higher, and the time of utilization by remote people was early afternoon and near by people late afternoon. ⑤ The main factor in forming the sphere of influence is the size of market and variety of goods and the distance, and the second factor is the price and quality of goods ⑥ In the compectition between the standing market sphere of influences, the Gravity Model is the elemental condition, and the variety of goods is the secondary condition, that is, the standing market sphere of influence is in direct proportion to the size of market and variety of goods, and in inverse proportion to the distance.
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Ethylene 제법시의 최소량의 Sulfur dioxide의 발생과 최대량의 Ethylene 발생방안에 대하여
박병수 安東敎育大學 1971 論文集 Vol.4 No.1
There are many methods in the progress of Ethylene manufacture which is important as a raw material of Synthetic Chemistry Industry. In the laboratory, a concentrated sulfuric acid is usually operated in Ethyl alcohol, and let Ethylene be produced, but we have not got a clear standardization and there involve various obscure doubts till now. In this study, the author has efforted to research for the questions and the solutions as indicated in the below statements, through which the author could produce the output of much more Ethylene and the minimum sulfur dioxide poisonous to human body, and in the same time the author was able to experiment in the more stable conditions than usual. 1. To avoid the concentrated sulfuric acid of excessive quantity and the heating of high temperature in comparison with a certain quantity of Ethyl alcohol. 2. The result in the case of using Alumina among the various solid Acid Catalysts is most excellent. 3. To use the concentrated sulfuric Acid more than a certain standard of density.
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